Sirup pump



Dec. 21 1926.

' E-'T. M CALL SIRUP PUMP Filed June 15 1926 8141mm oz r QUOTA mo Patented Dec. 21, 1926.

UNETED"STA1ES rarest caries- EDWIN T. MOCALL, OF LAURINBURG, NQBTZ-E "AROLZNA, ASSIGN 'OR OF ONE-HALF TO JAMES T. FIELDS, O1 LA'UBI SIRUP Application filed. June 15,

This invention relates to pumps or dispensing devices especially designed for dispensing liquids such as sirup or the like, the primary object of the invention being to provide a device of this character which will dispense a predetermined quantity of liquid with each operation thereof.

Another object of the invention is to provide a device of this character which will dispense a predetermined quantity of liquid at all times regardless of the quantity of liquid contained in the tank or receptacle in which the device operates.

A still further object of the invention is to provide a hollow member connecting the piston and spout of the device, there being provided a valve for holding a quantity of liquid within the hollow member at all times, thereby eliminating the necessity of priming the device for the initial operation.

lVith the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure 1 is a longitudinal sectional view through a device constructed in accordance with the invention.

Figure 2 is a perspective view of the modified form of valve.

Figure 3 is a perspective view of a further modified form of valve.

Figure 4 is a perspective view of a still further modified form of the valve.

Referring to the drawing in detail, the reference character 5 indicates the tank or receptacle in which the pump, forming the essence of the present invention operates, and as shown, the receptacle is of a particular construction, the same being provided with a depression 6, in the bottom 7 thereof defining a well.

The reference character 8 indicates the cover for the receptacle 5 which is removable so that the receptacle may be readily and easily filled.

A suitable opening is formed in the cover 8, through which the reduced upper end 9 of the hollow member 10 operates, the mem- NBURG, NORTH CAROLINA.

PUMP.

1926. 7 Serial No. 116,175.

defining a valve housing for the valve 13 that operates therein. The valve is normally held seated by means of the coiled spring 13 positioned between the valve 13 and wall of the valve housing.

As shown, threads are formed interior-1y of the enlarged portion 12 so that the member 10 may be secured to thethreaded ex tension 14 of the upper section 15 of the piston 16.

This member 15 is constructed to receive a wrench and is formed with a central bore through which liquid may pass into the hollow member 10, there being provided a valve seat at the upper end of the member 15 on which the valve member 13 seats.

An extension 17 forming a part of the member 15 is provided with an annular flange 18, which flange is adapted to act as a stop for the section 16 of the piston so that as the member 10 moves upwardly after it has been depressed in the operation of the pump, the flange will contact with the shoulder 19 of thepiston section 16 and return the piston section 16 to its normal position.

The extension 17 is of a diameter smaller than the diameter of the opening formed in the piston section 16 so that when the piston is in its normal position, liquid may pass between the extension and the piston section 16 to replenish the well or depressed portion 6 in the bottom 7.

Shoulders 20 are provided on the upper section 15 of the piston and are adapted to engage the upper surface of the section 16 when the member 10 is depressed, to prevent liquid from passing into the well, on the downstrolre of the member 10.

Forming a part of the valve 13 is an upwardly extended rod 21 that has fingers 22 at its upper end, and fingers 23 at its lower end, said fingers acting to guide the valve member 13 and insure the proper operation thereof.

Depending from the cover 8, are arms 24: that have inwardly extended portions 25 providing a rest for the coiled spring 26 which has one end thereof secured to the arm at 27, the opposite end of the coiled spring being connected with the member 10 so that downward movement of the member '10 will place the spring 26 under tension sition when the pressure at the upper end of member 10 has been relieved.

The valve member as shown by Figure 2 is substantially cone-shaped and includes a body portion 28 .and upper flanges 29 that are adapted to move in the hollow member 10 to guide the valve should this type of valve be employed in place of the one shown at 13.

Flanges 30 extend from the lower portion of the valve to guide the lower portion thereof. As shown by Figure 3, the body portion 31 of the valve is rounded to properly .seat at the upper end of the bore of the upper portion 15 of the piston.

The body portion 32 shown by Figure 1 is provided with lateral ribs 33 adapted to engage the wall of the hollow member 10 to hold. the valve body against lateral movement, the valve proper being indicated at 84-v and adapted to seat to normally hold fluid in the hollow member.

In the operation of the device, it will be obvious that upon downward movement of the member 10 caused by pressure exerted on the upper end thereof, the member 15 will move downwardly contacting with the lower portion 16 of the piston, thereby moving the lower portion of the piston to the limit of its downward movement within the well (3, cans ing a pressure to force the liquid contained in the well. up through the hollow member 10. It follows that the liquid contained in the hollow member will be forced outwardly through the spout which is in communication-with the hollow member 10 at the upper end thereof. Then the pressure at the upper end of the member 10 has been relieved, it is obvious that the weight of the fluid in the hollow member 10 and which has not been discharged therefrom, will act to seat t valve 13 to the end that a predetermined quantity of liquid will be held in the hollow member 10 at all times.

As the member 10 is moved to its normal position under the action of the spring 26, the piston assumes its normal position as shown by Figure 1, whereupon liquid will find its way between the members 17 and 18 and lower section 16 of the piston to refill the well in the bottom.

It will further be noted that due to this construction a predetermined quantity of liquid may be dispensed from the receptacle regardless of the quantity 0t liquid contained therein.

I claim:

In a device of the character described, a receptacle having a well at the bottom thereof, a hollow member mounted for vertical movement within the receptacle, a piston operating in the well and having a central opening, said piston including an upper movable section having a reduced portion extending into the opening, a flange at one end of the reduced portion, and adapted to engage the piston to movably connect the piston and upper section, said upper section having shoulders adapted to engage the piston to force the piston downwardly, said upper section having a valve seat, and having a bore to permit the passage of fluid therethrough, a vertically movable valve adapted to cooperate with the valve seat to restrict the passage of fluid through the hollow member, said valve adapted to move vertically on downward movement of the hollow member to permit fluid to pass upwardly through the hollow member.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

EDWIN T. HoCALL. 

